Improvement in car-axles



R.. W. NELSON.

CAR-AXLE.

Patented Aug. 1, 18 76 VENTUB: l aw wnnessss:

N- PETERS. PHOTOJJYHOGRAPHER, WQNINGTCN, D C.

UNITED STATES PATENT OFFICEg ROBERT W. NELSON, OF UHARLOTTESVILLE, VIRGINIA.

IMPRoveMENJ-r IN CAR-AXLES.

Speciticatiron forming part of Letters Patent No. l80,494, dated August 1, 1876; application filed May 16, w76.

To all whom it may concern:

Be it known' that I, ROBERT WILLIAM NEL- SON, of Charlottesville, Albemarle county,

State of Virginia, have invented a new and Improved Gar-Axle, otwhich the following is a specitcation:

ln the accompanying drawing, Figure 1 reprcsents a .sectional side elevation ot' my im- Y is a vert-ical section of the same on line OC,

.tions of my improved ear-axle, which are jointed about midway between the wheels. 'lhe axle-section A has a collar or shoulder7 a, and a conically-taperingjournal, b, that enters and revolves in a corresponding bearing -ot' the section B. The section B is also provided with a collar or shoulder, d, ofthe saine diameter as collar a, but screw-threaded to admit the screwing on of thejointingsleeve O, that forms the connection of the axle sections. The screw-sleeve O is loosely placed on section a, and bears, by a ange, e, at the smooth end of the sleeve C, against the collar a ot' section A. The sleeve C is provided with an oil-cup,f, that opens by a capillary oil-duct or channel, f', just above the junction of the axle-sections. In place of the capillary tubes g, and then pointed.

a larger opening may he made, and ttted witha cotton wick, by which the oil is, in similar manner, slowly, but continuously, fedto the jointed part ot' the laxle-sections forr` lubricating the saaie. A spring, D, attached to section B forces a small lock-pin, g, into socketholes ot' the sleeve C and section B, so as to keep the sleeve more ijrmly in place, and prevent any screwing oft` by friction withsection A. By withdrawing the spring from the sleeve the sume may be unscrewed, and thereby the axle-sections separated. j

rlhe conical journal and bearing ot' the axlesections are devised for thepnrpose otenabling even a small quantity of oil that is ted from the oil-cup to pass freely down to the end or point up the cone, and lubricate thereby the whole axle-joint in a more advantageous manner than with a cylindrical or other connection. Y

The wear is made even throughout the length of the conical parts, and greater strength attained in the section bored out uthan by any other form ot' sectional axle.

I am aware that car-axles have been made with two cylindrical bearings, connected by an intermediate tapered part, in order that said axles maybe adjusted to dit't'erent roadgages; but my bea-ring isnot double or changeable, but is wholly upon the taper, and extends along the entire length thereof'.

Hence what I claim is- A car-axle made in two sections, one having a conical socket that receives the journal ot the other. and alfords it a bearing along its Whole surface, as shown and described.

ROBERT WILLIAM NELSON.

Witnesses:

R. W. BAILEY, J. D. GOODMAN. 

